<code>
@Book{niederst2001web,
 author = {Niederst, Jennifer},
 title = {Web design in a nutshell : a desktop quick reference},
 publisher = {O'Reilly},
 year = {2001},
 address = {Sebastopol, CA},
 isbn = {9780596001964},
 lang = {en},
 sign = {11/00056},
 gbv = {54.55},
 rvk = {ST 201 W78},
 url = {http://www.oreilly.de/catalog/9780596001964/#top},
 thumb = {http://www.oreilly.de/catalog/covers/9780596001964.s.gif}
}
@Techreport{rrzn2001xml,
 author = {Autorenkollektiv},
 title = {XML : Grundlagen},
 institution = {Regionales Rechenzentrum für Niedersachsen},
 year = {2001},
 address = {Universität Hannover},
 lang = {de},
 sign = {11/00091},
 gbv = {54.55},
 rvk = {},
 url = {http://www.rrzn.uni-hannover.de/buch.html?titel=xml},
 thumb = {http://www.uni-muenster.de/ZIV/inforum/2010-2/Pictures/20000008000019DD0000235C9D0AEE19.png}
}
@Book{harold2001xml,
 author = {Harold, Elliotte},
 title = {XML in a nutshell : a desktop quick reference},
 publisher = {O'Reilly},
 year = {2001},
 address = {Sebastopol, CA},
 isbn = {9780596000585},
 lang = {en},
 sign = {11/00057},
 gbv = {54.55},
 rvk = {ST 250 X70},
 url = {http://www.oreilly.de/catalog/9780596000585/#top},
 thumb = {http://www.oreilly.de/catalog/covers/9780596000585.s.gif}
}
@Book{hess2000xhtml,
 author = {Hess, Uwe},
 title = {XHTML 1.0},
 publisher = {Bhv},
 year = {2000},
 address = {Kaarst},
 isbn = {3828750508},
 lang = {de},
 sign = {11/00058},
 gbv = {54.55},
 rvk = {ST 351 H97},
 url = {},
 thumb = {http://ecx.images-amazon.com/images/I/51K3BEX3CQL._SS500_.jpg}
}
</code>